{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "arguments": ["Effect", "Treatment", "Subject.Disorder", "Subject.Age", "Treatment.Time_elapsed", "Subject.Race", "Treatment.Route", "Treatment.Duration", "Subject.Gender", "Treatment.Drug", "Treatment.Freq", "Combination.Drug", "Treatment.Disorder", "Subject.Population", "Treatment.Dosage"]}], "input": "Unintended exposure to acyclovir early in pregnancy, which is not uncommon, may cause excessive maternal and physician anxiety."}
{"adverse event": [{"Effect": "excessive maternal and physician anxiety", "Treatment": "Unintended exposure to acyclovir", "Subject.Disorder": "NAN", "Subject.Age": "NAN", "Treatment.Time_elapsed": "NAN", "Subject.Race": "NAN", "Treatment.Route": "NAN", "Treatment.Duration": "NAN", "Subject.Gender": "NAN", "Treatment.Drug": "acyclovir", "Treatment.Freq": "NAN", "Combination.Drug": "NAN", "Treatment.Disorder": "NAN", "Subject.Population": "NAN", "Treatment.Dosage": "NAN"}]}